Exam 2: Evaluating Nutrition Information

A group of nutrition researchers interviews 100 adults who have chronic high blood pressure to determine whether there is an association between consuming diets low in calcium during adolescence and developing high blood pressure in adulthood.This study is an example of a ________ study.

A group of researchers wants to determine whether certain dietary factors are associated with the risk of attention deficit hyperactivity disorder (ADHD)in children.The scientists follow a group of 500 healthy newborn babies for 10 years and collect health information as well as dietary practices for each child.At the end of the study period,the scientists analyze the data for correlations between the children's dietary practices and their likelihood of being diagnosed with ADHD.This is an example of a ________ study.

Researchers are conducting a study to determine the effects of vitamin D supplementation on bone health in adults.The study involves providing pills that contain vitamin D to one group of human adults,and pills that do not contain the vitamin or other active ingredients to another group of adults.The pills that do not contain vitamin D are

Scientists enroll 500 healthy adults in a study and collect dietary and other lifestyle information about the group.After 6 years,the scientists determine that study participants who ate at least 5 servings of fruits and vegetables daily were less likely to develop high blood pressure than participants who ate fewer than 5 servings of these foods daily.This study is an example of a(n)________ study.

The vitamin effective in treating pellagra is